Samch’ŏn climate — normals and trends
Samch’ŏn (North Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 10.9 °C and it receives 978 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (24.7 °C on average) and the coldest is January (-3.8 °C). Rainfall peaks in July.
Samch’ŏn averages 111 frost days, 12 hot days (≥ 30 °C) and 94 rainy days per year.
Samch’ŏn has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 120 to 102 per year over the period.
The hottest day of the period reached 35.7 °C (on 10 August 2019) and the coldest -21.8 °C (on 11 February 1941).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
Samch’ŏnSouth Hwanghae
- coords
- 38.36°, 125.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.9°C
Average daily high
15.1°C
Average daily low
7.2°C
Annual rainfall
978mm
Sunshine / day
8.9h
Mean relative humidity
73%
Average peak wind
17.1km/h
Seasonal range
28.5°C
Frost days (< 0 °C)
111 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
94 d/yr
Annual snowfall
28.6 cm
Average feels-like high
13.9 °C
Average feels-like low
5.1 °C
Average peak gust
38.0 km/h
Tropical nights (≥ 20 °C)
51 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.52 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
35.7 °C
10 August 2019
Coldest day
-21.8 °C
11 February 1941
Wettest day
218 mm
7 September 1962
Windiest day
55.3 km/h
27 August 2020
Strongest gust
136.1 km/h
27 August 2020
Hottest feels-like
44.3 °C
1 August 2018
Coldest feels-like
-27.3 °C
11 February 1941
Snowiest day
18.4 cm
8 March 1991
Sunniest day
14.2 h
25 June 1951
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 2.1 °C | +2.2 °C | 15 mm | -4 mm |
| Feb | 1.1 °C | -1.0 °C | 10 mm | -9 mm |
| Mar | 10.7 °C | +2.8 °C | 38 mm | +7 mm |
| Apr | 15.4 °C | +0.4 °C | 75 mm | +18 mm |
| May | 20.0 °C | -0.6 °C | 83 mm | +10 mm |
| Jun | 26.1 °C | +1.3 °C | 127 mm | +32 mm |
| Jul | 30.5 °C | +3.2 °C | 74 mm | -174 mm |
| Aug | 30.5 °C | +2.4 °C | 168 mm | -39 mm |
| Sep | 26.3 °C | +2.0 °C | 217 mm | +104 mm |
| Oct | 18.7 °C | +0.6 °C | 113 mm | +67 mm |
| Nov | 12.5 °C | +2.2 °C | 20 mm | -25 mm |
| Dec | 3.8 °C | +1.0 °C | 27 mm | +2 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Samch’ŏn?
Samch’ŏn has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 10.9 °C and it receives 978 mm of precipitation per year.
What is the hottest day ever recorded in Samch’ŏn?
The hottest day measured in Samch’ŏn between 1940 and 2025 was 10 August 2019, reaching 35.7 °C.
What is the coldest day in Samch’ŏn?
The coldest day measured in Samch’ŏn between 1940 and 2025 was 11 February 1941, at -21.8 °C.
Does it snow in Samch’ŏn?
Yes. Samch’ŏn gets on average 28.6 cm of snow per year and has around 111 frost days.
Has the climate of Samch’ŏn warmed?
Yes: Samch’ŏn warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Samch’ŏn?
The wettest day measured in Samch’ŏn between 1940 and 2025 was 7 September 1962, with 218 mm of rain in 24 hours.
What was the windiest day in Samch’ŏn?
The windiest day measured in Samch’ŏn between 1940 and 2025 was 27 August 2020, with winds reaching 55.3 km/h.
What is the warmest month in Samch’ŏn?
The warmest month in Samch’ŏn is August (24.7 °C on average); the coldest is January (-3.8 °C).
How much does it rain in Samch’ŏn?
Samch’ŏn receives on average 978 mm of precipitation per year, spread over about 94 rainy days.
Is it sunny in Samch’ŏn?
Samch’ŏn gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Samch’ŏn?
The heaviest 24-hour snowfall measured in Samch’ŏn between 1940 and 2025 was 8 March 1991, with 18.4 cm.
Are there tropical nights in Samch’ŏn?
Yes: Samch’ŏn has on average 51 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Samch’ŏn?
In Samch’ŏn, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 1 August 2018, and the lowest was -27.3 °C on 11 February 1941.
Compare Samch’ŏn with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Samch’ŏn